Information processing capabilities enabled by storage area networks. What is san storage area network is a design to transfer data, from server to clients. A lan is very useful for sharing resources, such as data storage. Storage area networks seminar report and ppt for cse students.
The common communication and data transfer mechanism for a given deployment is commonly known as the storage fabric. A san typically has its own network of storage devices that are generally not accessible through the local area network by other devices. Security considerations for storage area networks what is a san. The possibility of a truly durable, failureproof information system begins to emerge. Looking at the pros and cons of using a storage area network. Mar 31, 2011 a storage area network is a highspeed sub network of shared storage devices. A local area network, or lan, consists of a computer network at a single site, typically an individual office building. Introduction to storage area networking this chapter describes in general terms the benefits, the challenges, and risks of using a storage area network san. A storage area network san is a highspeed specialpurpose network or sub network that interconnects different kinds of data storage devices with associated data servers on behalf of a larger network of users. Networkattached storage nas and storage area networks san.
A fibre channel also known as fabric relies on the concept of local area network. It provides blocklevel storage that can be accessed by the applications running on any networked servers. A san is a collection of storage and backup devices connected together through a network that is totally separated from other servers via a switch. Overview the term san designates a new type of storage architecture in which the storage systems are attached to a high speed network dedicated exclusively to storage. San solutions are usually connected using a fibre based optical connection with varying configurations in terms of storage capacity and redundancy levels. A storage area network san is a high availability device used to interconnect computers and networks to a central repository of data. Storage area network simple english wikipedia, the free. It is mainly used to make storage devices, like disk arrays, optical jukeboxes, and tape libraries. What is storage area network architecture san architecture. To the user, storage area networks appear to be local to the operating system, but they are actually remote. Everyone likes new toys, and a storage area networks sans are pretty cool.
There can be a remote copy of the storage data kept separately using the storage area network. Storage area networks seminar report, ppt, pdf for ece. Sans are primarily used to enhance accessibility of storage devices, such as disk arrays and tape libraries, to servers so that the devices appear to the operating system as locallyattached devices. A san storage area network is a subnetwork of storage devices that are shared with one another over a highspeed network connection. A study paper on storage area network problemsolving issues. Storage area network often relies on fibre channel topology, which is specifically designed to handle storage communications. A storage area network san is a computing solution for accessing and storing data. Key considerations in developing a storage area network design. A storage area network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers.
Each point of attack may be used as a steppingstone for later attacks. Clients communicate with the access point through the wireless link and can reach the ethernet network through the ap bridge connection. Only point to point connections allowed in 10baset repeater regenerates data received from one cable and. Sure, users could share files over a lan, but you still needed a way to share access to the physical disks in every server. Storage data store is separated from the processors and separated processing. Sans are typically composed of hosts, switches, storage elements, and storage devices that are interconnected using a variety of technologies, topologies, and protocols. System dependent network attached storage nas nas scalability. What is storage area network san storage tutorials. A storage area network is a dedicated, centrally managed, secure information.
A free powerpoint ppt presentation displayed as a flash slide show on id. As fibre channel provides faster and more reliable access, it is used as basic protocol in san infrastructure. This can be useful if there is a primary data failure or natural disaster. In a typical storage area network design, each storage device connects to a switch that then connects to the servers that need to access the data. Storage area network san installation and configuration guide. Storage area network san architecture refers to the logical layout of a san infrastructure. Typically, a storage area network is part of the overall network of computing resources for an enterprise. Geographical area country organization, enterprise department host.
As with any distributed storage system, a major design challenge for a storage area network san is to provide data integrity and con. The importance of software to storage area networks. Ibm san solutions support virtualization, hybrid multicloud and big data requirements. San offers centralized storage network, and its speed and efficiency is much more than the bundle of individual servers put togther to make storage network. A nas is a single storage device that operates on data files, while a san is a local network of several devices. Ppt storage area network san powerpoint presentation. Ethernet media using an io protocol called iscsi is emerging in 2001. The storage area network combines an array of storage devices and enables faster communication. Customizing an implementation to meet your specific needs therefore requires an understanding of your organizations primary business requirements.
The purpose of a storage area network is to allow all designated users on the network to access multiple storage devices, not only the storage devices installed in their computer. An san makes a network of storage devices accessible to multiple servers. Storage area network if you have a more demanding san environment, the dell emc cx400 is a versatile, rackdense midrange 2gb fibre channel storage array offering up to. Issues in the connection and cable in storage area network. To understand the difference between a san and network attached storage nas, the difference between the file system and storage must be made clear. To make nas fault tolerant, nas systems usually contain one or more hard disks, often arranged as raids. Also explore the seminar topics paper on storage area networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. Short for storage area network, san is a highspeed network of storage devices that also connects those storage devices with servers. Also explore the seminar topics paper on storage area networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year. Storage area network san installation and configuration. San storage devices can include tape libraries and diskbased devices, like raid hardware. Introduction to storage area networks july 2006 international technical support organization sg24547003.
Generally, this network storage is part of the overall network of computing resources for both government and education organizations. Also explore the seminar topics paper on storage area networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016. The storage area network contains the fiber cables. Snapshots are used as backup sources for the overall backup procedures defined for the storage array. The fiber channel fc san and internet small computer system interface iscsi san are being deployed by enterprises around the globe. How the san is logically created components used data storage and retrieval frameworks devicehost interconnectivity other parameterscomponents essential for a san. The r first bytes r 1,2,3 correspond to the network address. By carrying scsi commands over ip networks, iscsi is used to facilitate data transfers over intranets and to manage storage over long distances. It is alternative to the directly attached targets.
In addition to storing data, sans allow for the automatic backup of data, and the monitoring of the storage as well as the. Fibre channel san storage overview tutorial video youtube. High capacity, high availability, high scalability, ease of configuration, ease of. Storage area network fundamentals cisco press networking. Sans are primarily used to make storage devices, such as disk arrays, tape libraries and optical jukeboxes, accessible to servers so that the devices appear like locally attached devices to the operating system. The best place to start when explaining storage area networks is with fibre channel, the original san protocol. Storage area network as a networked highspeed enterprise infrastructure nt windows nt.
Storage area networks sans are sometimes referred to as network behind the servers. Storage area network san articles, overviews and web. Direct attached storage array is now the single point of failure complex environment experts only. Storage area networks seminar report, ppt, pdf for ece students. Your data flow is only as fast as your network connectivity allows. It is primarily used as the storage device server can access this. There is another key difference between data storage on a server or nas box, and how data is stored in a san.
San devices appear to servers as attached drives, eliminating traditional network bottlenecks. A storage area network san is a specialized, highspeed network that provides blocklevel network access to storage. Storage area network jussi murtola sis lt sanyleist eroavaisuudet tallennusmenetelmien v lill topologiat sanverkkolaitteet kuitukanavan arkkitehtuuri. Loop ports are used in arbitrated loop configurations to build storage peripheral networks without fc switches. Fabric ports reside on switches and allow connection of storage peripherals n port devices l port. To do the wrong plan is the causes the problem in storage area network. Ppt storage area network powerpoint presentation free. Fibre channel is still the most popular san protocol today, although iscsi and fibre. Oct 01, 2008 networkattached storage nas and storage area networks san networkattached storage nas is a filelevel computer data storage device that is connected to a computer network to provide shared drives or folders. What is a storage area network, and which benefits does it. This chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of storage area networks sans. Storage area network the storage area network is made up of hbas, storage networks, storage processors, and disks storage networks are a separate component from the storage array. Storage area network brocade san architectural brief overview although storage networking technologies are commonly available to the entire market, each enterprise or institution is unique. A storage area network san or storage network is a computer network which provides access to consolidated, blocklevel data storage.
This, however, shouldnt be the main reason to install a san. Because all data storage was located inside each individual server, you had no effective way to efficiently allocate storage space between all the servers. A san is, at its simplest, a dedicated network for data storage. San conceptual and design basics vmware esx server can be used in conjunction with a san storage area network, a.
Introduction to storage technologies and terminology. Risks and threats to storage area networks help net security. The changing of zoning every time is tough because it contains the 16 bits of hexadecimal code in common worldwide names wwns networks. A sans architecture works in a way that makes all storage devices available to all servers on a lan or wan.
A storage area network san is a high speed network only for storage that is separate from the public lan. Explore storage area networks with free download of seminar report and ppt in pdf and doc format. A storage area network, or san, is a highspeed sub network that connects many types of storage devices with data servers for a large network of users. Sg24547000 international technical support organization. It focuses on the techniques and the technologies that have evolved around slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Download cbse notes, neet notes, engineering notes, mba notes and a lot more from our website and app. A storage area network san is defined as a set of interconnected devices for example, disks and tapes and servers that are connected to a common communication and data transfer infrastructure such as fibre channel. Pdf this chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of storage area networks sans. Introduction to storage area network, san ravi kumar khattar, mark s. What properties a storage area network must have, should have, and may have. This type of wlan is built by attaching an access point to the edge of the wired network and setting up the ap to work in bridging mode. A storagearea network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers. Fibre channel is the highspeed technology and communications protocol to connect those storage and backup devices. Storage area network brocade san architectural brief.
What is storage area network san in simple words san is a highspeed, dedicated network of servers and shared storage devices and provides access to consolidated, block level data storage. San is a network which is designed to attach computer storage devices such as disk array controllers and tape libraries to servers. As wikipedia, the free encyclopedia 2005 explains it, a storage area network san is a network designed to attach computer storage devices such as disk array controllers and tape libraries to servers. To make sure this path isnt a point of failure, your client should buy two switches for the san network. Administrators perspective storage network points of attack threats to storage networks come from many places. Sticky august 4, 2017 uncategorized kmitit4yr2semsanmaterial. Apr 18, 2002 storage area network fundamentals presents the benefits of storage area networks sans to corporate users and enables them to deploy san technology effectively. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage. The topology can be used as a launch point for device and vendor specific user interfaces 26. Storage area network san a storage area network san is a specialized, dedicated high speed network joining servers and storage, including disks, disk arrays, tapes, etc. Today, most sans use fibre channel media, providing an anytoany connection for processors and storage on that network. Storage area networks 10cs765 vtu belagavi, karnataka wednesday, 19 august 2015. As more storage devices are added to a san, they too will be accessible from any server in the larger network. Storage area networks dark fibre, sanlink and high speed service solutions.
Darkfibrehsswhitepaper122010v01 page 5 of 8 or more sites. Why information services professionals should be interested in storage networking. Storage area networks, with their ability to offer high data availability, reliability and scalability, are a promising solution for the large scale storage needs of many enterprises. All devices connected arbitrarily using all previous ways to connect each other, resulting in a hybrid structure. The former uses file level storage and the latter uses block level storage. Each storage unit should connect to both switches, as should each server. Sans support disk mirroring, backup and restore, archival and. A storage area network san is a dedicated network that provides access to consolidated, block level data storage. Storage area networks and network attached storage provide networked storage solutions. Understanding storage area networks sans determining whether a san is right for you looking at san layers and protocols discovering which operating systems benefit from sans discovering which application can use or require sans this chapter is dedicated to helping you get a handle on what a storage area network san is, the. The remaining h bytes h 3,2,1 are used for the host machine. Ppt san storage area network powerpoint presentation. Storage area networks provide connectivity to the virtual server using either the fibre channel fc or iscsi protocols.
Administration from an administrators point of view, a network can be private network which. Nspof no single point of failure which can enable customers to have 99. The storage data is very secure on the storage area network and cannot be copied or stolen by anyone else. Designed as an introduction to sans, storage area network fundamentals develops an understanding of san basics and shows how to plan, implement, and manage a san. Data communication and computer network 2 all devices connected together with a single device, creating starlike structure.
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